摘要
确立了坚果及其制品（核桃、杏仁、栗子）中匹克司残留量的气相色谱测定方法。试样采用甲醇提取，经ＰＴ－硅镁柱净化，ＧＣ－ＥＣＤ测定，方法简便、快速、灵敏，检出限０．０２×１０－３ｇ／ｋｇ，添加回收率８７．４％～９３．２％，相对标准偏差４．４５％～６．８８％．
A method for the determination of pyrifenox residues in nuts and nut products by gas chromatography was developed. The pyrifenox residues in samples is extracted with methanol and cleaned up by PT-silica magnesium cartridge. The determination is made by means of a gas chromatograph equipped with ECD. The detection limit is 0. 02 mg/kg. The average recovery is from 87. 4% to 93. 2% and RSD is from 4. 45% to 6. 88%.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1997年第12期1401-1403,共3页
Chinese Journal of Analytical Chemistry
关键词
匹克司残留量
气相色谱
坚果
消斑污
Pyrifenox residue, gas chromatography, nut, microchemical method
